This manuscript reports t-test results between two groups of average scores for variables P-1, P-4, and I-1. 

The text prints the results from SPSS. 
A separate test in R confirms the results -SPSS and R treats a missing value in I-1 and there is a minuscule difference between their calculations (in R,  t (249.57) = -1.479 and p=0.140); the statistical significance does not change. 
